I, like the famous owl, will never know how many licks it takes to get to the center of a Tootsie pop!
Well, I agree about the liver, and about gorgonzola (and it's cousin blue cheese), but eggs are wonderful--my favorite is fried over-easy, but boiled eggs and omelets are pretty good. Popcorn, with a little salt and butter, is great.
Coriander leaves (known as cilantro) are wonderful--tastes fresh. But then, since you don't seem to like green food, it might not do much for you.
It's spices, pasta and flavorings to add to browned ground beef. It often has powdered cheese flavoring in it. I'm not a big fan--my mom fed it to us a few times, mainly because she wanted to try it and had a good coupon. I think I may have eaten it once or twice as an adult. https://www.bettycrocker.com/products/helper
I didn't like mangoes until about a year and a half ago, I had mangoes that I actually liked bought at a farm stand outside of Miami. The right varieties (an orange color, about the color of canned peaches) that have been picked at the right time are wonderful.
Plantains are good. I like them fried, but can eat the "crisps" (known in the U.S. as chips) as well.
I could never stand for snails or frogs. I'm a dishonor to my country. I could not even try snails. I saw one time an old lady taking entire bags of snails.
I used to think these was British; My brother came back from America with them in 1998 and I was like 'They have Starburst out in America?!'.. I didn't see any Starbursts in Amsterdam, 'now that I think about it, but I do use my experiences in Amsterdam as a measuring stick of a rough idea of what they've got and what they haven't got on the continent (continental Europe).
I wonder if Skittles is British? Edit; They are: https://en.wikipedia.org/wiki/Skittles_(confectionery)
You ever had Jägermeister? I don't buy this, people have bought this for me, I might have bought this when I was 17 in this rock pub in Croydon that were sponsored by Jägermeister so they had Jägermeister parties. In 2015 I guess, this girl I befriended in this big night club in London kept on buying me Jägermeister until I made my escape... Like 2 or 3 Jägermeisters.
I want to try frog and alligator and crayfish. I think I once tried supermarket calamari as it was an ingredient in this ready made lunch meal thing but... I could pass, I don't hate, but I don't love calamari either. There's this oyster bar in this fancy department store's food court in London I've been meaning to go to. - The one in Harrods, I don't know where else to find oysters.
You need to visit Louisiana--best place for alligator and crayfish, and a good place for oysters. I bet you can find frog and calamari there as well.